1975 ct1-dt175,does the clutch pushrod have a ball bearing?

If I remember correctly, you have a UK model that is not very commonly seen or talked about?

Pretty sure that a USA 1975 DT175 no longer used a ball bearing between the clutch pushrods... and while it's likely yours doesn't either, best to find a parts manual as Gr8uncleal already recommended.

As a poor second choice you could study the engine parts diagrams and see if your engine is the same as the US model... "jackshaft" shifter arrangement, clutch arm on top of engine with "eccentric screw" adjuster that raises and lowers arm, location of rear lower engine mount, etc. If yours has the same features as the 74-75 US 175 model there's a decent chance yours is the same.

What I don't know is if Yamaha used the earlier "CT" design for your engine? In some countries Yamaha kept the US 69-73 175 engine architecture after 1973... like the AG175 for example.

thanks for the reply Mark,yes your right about the jack shaft and eccentric screw,looking at the usa model it is identical to mine with no ball bearing but looks like it has 2 pushrods, i need to find out the lengths of the pushrods because whoever had this bike before didn’t know what they were doing

The parts fiche on yamaha of las vegas's website is the best quality i've found between all the other parts websites. Ordering from them is a bit impossible because everything seems to be $2.79 AND NOTHING  will add to cart but its a good reference for parts numbers and replacement parts numbers for updated obsolete parts.

yamahaoflasvegas.com/Shop-Online/Parts-Fiche

thanks so much for that,you have been a big help